The amazing advances made in mapping the human genome don't alter one longstanding fact: when it comes to unlocking the scientific secrets of life, fruit flies rule. Uptal Banerjee, Chair of the the Department of Molecular, Cell and Developmental Biology at UCLA, explains that most principles that have been laid out in developmental biology — from mechanisms of stem cell maintenance to how a head differs from a tail — came from work in Drosophila. Recorded on 10.06.2014. (#30565)